The deal is said to have set Chelsea back £5m and will see the teenager join fellow countrymen David Luiz, Ramires, Oscar and Lucas Piazon.

The signing of Wallace suggests that the Blues are again looking to the future and Chelsea will allow the youngster to remain at Fluminense until the end of the Brazilian domestic season.

Though Chelsea have brought in Cesar Azpilicueta to fill the right-back berth the fact that Branislav Ivanovic has moved into a central defensive role there is clearly room for Wallace to challenge for a first team spot next term.